Since it's such an unquestioned fact, one would think you could support your own argument and stop demanding that we both prove you wrong and argue it for you. Of course, the last time you defended this rivalry you used 'success against Ohio State' as a form of criteria. When that didn't end well for you, you claimed you didn't lay down any criteria and scoffed at Purdue's inclusion. So I'm sure this time will go much better.
Wisconsin has been much more of a rival than Penn State, and unlike the Happy Valley university that fell apart after joining, they play big boy sports after new years.